HIGH QUALITY STOCK AND CUSTOM-ENGINEERED PIPE EXPANSION JOINTS
Stock DN12 to DN400 pipe expansion bellows on 24hr delivery. Custom configurations made to order.

Pipe Expansion Joints
FlexEJ manufacture rubber and metal expansion joints (bellows) to meet your exact specification. Many applications are covered by our ranges of standard, stocked, rubber and metal bellows - whatever your needs FlexEJ is here to help.
Can't quite find the right bellow?
Try the FlexEJ Bellows Finder
Or call our expert team on +44 (0) 1384 881188
FlexEJ's Pipe Expansion Joints
From the simple to the fully specified:
Metal Expansion Joint Manufacture
Design & build
METAL EXPANSION JOINT MANUFACTURE
Metal expansion joints from DN25 to DN3000+
Full multi case, concurrent / non concurrent movement design using our own EJMA10 bellows and hardware calculation tools.
Overall design to B31.3 or EN13445 with PED as appropriate supported by SolidWorks, FEA and thermal modelling for high temperature designs requiring internal insulation. We are happy to work to any client specifications and to submit full design and manufacturing documentation for approval.
Bellows materials include 304, 321 316(H), 625, 800(H), 825, expansion joint materials include carbon steels, CrMo, stainless steels. All with liners, covers, tie rods, hinges, gimbals, pressure balanced, insulation, refractory as required to deliver a complete pipe expansion joint to your exact requirements.
Rubber Expansion Joint Manufacture
Design & Build
RUBBER EXPANSION JOINT MANUFACTURE
Rubber expansion joints from DN25 to DN3600+
FlexEJ's sister company Safetech designs and manufactures rubber expansion joints. Rubbers available include WRAS approved EPDM, Nitrile and VITON.
Any flange drilling pattern can be accommodated along with tie rods, hinges, gimbals or pressure balanced designs. Backing flanges in carbon steel or stainless steel supplied in segments with integral tie rod lugs or a one piece.
Safetech also manufactures large diameter rubber hoses, rectangular rubber bellows, reducing rubber bellows and are happy to consider any product or design request.
INDUSTRIAL METAL BELLOWS
Configured and stock
FlexEJ's Industrial range combines stock bellows with a wide range of flanges, pipe ends and hardware to provide a highly specified expansion joint product in a short lead time.
ELAFLEX RUBBER EXPANSION JOINTS
Renowned for their high quality and durability
Elaflex rubber expansion bellows are available in over 8,000 configuration options of rubber, flange drilling, restraints and PTFE lining. The core range is in stock at FlexEJ backed by a vast and comprehensive stock in Hamburg. Elaflex bellows offer high quality stock based solutions for a huge range of applications.
HVAC METAL BELLOWS
For HVAC and building services applications
FlexEJ's HVAC range of metal expansion joints are available in diameters from 12mm to 150mm with flanged, copper or union ends to suit the piping being installed. Available from stock or on short lead times
HVAC RUBBER BELLOWS
Available in a wide range of sizes, flange and restraint options
FlexEJ’s HVAC rubber bellows range is intended to offer great value for money for lower temperature and non critical HVAC services. Our standard flanged rubber bellow is EPDM rubber with galvanised mild steel PN16 flanges, tied or untied - a BSP Union-end bellows is also available.
PTFE EXPANSION BELLOWS
Configurable expansion joints from DN25 to DN600
FlexEJ's PTFE bellows feature multilayer solid PTFE convolutions. PTFE is almost totally chemically inert and highly insoluble in most solvents or chemicals. This makes it an excellent choice in highly corrosive environments or where media contamination is an issue.
PHARMACEUTICAL EXPANSION JOINT MANUFACTURE
For aseptic and hygienic applications
This is a product which FlexEJ has developed to address a need for a self-draining, high surface finish metal bellow rated typically at 270°C and 10 BarG
Prefer to talk shop?
Just call us. Or we'll call you.
You can call the team on +44 (0) 1384 881188 or hit the get a quote button and we'll call you back
Who can you talk to?
Try our sales and customer service team on 01384 881188
They don't bite. And they know what they're talking about. Call the team any time from 9am to 4pm weekdays or use LIVE CHAT if you would prefer a quick text answer. For more complex queries, send us any pro-forma documentation using the get a quote form below or email us sales@flexej.co.uk.
Not sure what flange spec you need?
Use the FlexEJ Flange Finder to find out
FlexEJ stock a full range of specs and types for our bellows. Or call our expert team on +44 (0) 1384 881188.
Frequently Asked Questions
> Expansion Joint – an expansion joint is a complete unit with metal bellows or rubber bellows and end fittings, plus, optionally, liner, cover and external hardware. Other terms used : compensator, flexible connector.
> Rubber Bellows – the flexible element within a rubber expansion joint
> Metal Bellows – the flexible element within a metal expansion joint
> Liner – The liner fits within the expansion joint under the metal bellows or rubber bellows to prevent the flowing media directly impinging on the bellows. This this reduces flow disturbance and allows the temperature of the bellows to be controlled in the design.
For technical assistance please contact us or use our Live Chat facility.
For technical assistance please contact us or use our Live Chat facility.
Can't see what you want? Need help?
Call us. Or use Live Chat.
For instant advice. We can custom-design and engineer almost any expansion joint you need for delivery in the UK or worldwide. Call our expert team on +44 (0) 1384 881188. Or email us sales@flexej.co.uk
Got a quick question?
Use Live Chat. Or call us.
For instant advice use the Live Chat link to message one of the sales team. Or call them direct on +44 (0) 1384 881188
Get A Quote
Please complete the short form here and we'll get back to you within 24hrs Monday to Friday (quicker if marked urgent).
Alternatively, you can also call our expert team directly on +44 (0) 1384 881 118 from 8:30AM to 4:30PM weekdays who will be only too pleased to talk through your requirements and technical queries over the phone.
Visitors are also welcome Monday to Friday although please get in touch beforehand to let us know you're coming.
Industry experience
FLEXEJ Ltd was formed in 2002 by two professional engineers who brought together an already highly respected design capability with business and commercial skills gained in large multinational companies.
- Our focus has always been on application and design – helping our customers find the best value solution.
- We have a strong engineering and manufacturing team with experience in petrochemicals, refining, nuclear, desalination though to HVAC.
- The team is also very familiar with meeting complex requirements for documentation, in process NDT and test on projects. We have supplied many large end-users such as EDF, Exxon, Shell, Reliance & QatarGas working with major contractors such as JGC, Foster Wheeler & Technip.
